Surgical retractor system
CA 2357716 A1 · Owner: Fraser, Robert D. · Inventors: Fraser, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical retractor system comprises a support frame and at least one retractor, blade. The support frame has a generally horizontally oriented support member comprising, a plurality of holes. The surgical retractor has at least one retractor blade which is, mateable at a selected position on the support frame. At least one retractor blade of the, surgical retractor system has an open access window which provides greater visual and, physical access to the surgical field.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.